[VLAN]: Quiet some printks and free devices/groups correctly.

net/8021q/vlan.c

@@ -45,7 +45,7 @@ spinlock_t vlan_group_lock = SPIN_LOCK_UNLOCKED;
 
 static char vlan_fullname[] = "802.1Q VLAN Support";
 static unsigned int vlan_version = 1;
-static unsigned int vlan_release = 7;
+static unsigned int vlan_release = 8;
 static char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
 static char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
 
@@ -257,6 +257,12 @@ static int unregister_vlan_dev(struct net_device *real_dev,
 				__grp_unhash(grp);
 				spin_unlock_bh(&vlan_group_lock);
 
+				/* Free the group, after we have removed it
+				 * from the hash.
+				 */
+				kfree(grp);
+				grp = NULL;
+
 				ret = 1;
 			}
 
@@ -627,6 +633,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 			ret = unregister_vlan_dev(dev,
 						  VLAN_DEV_INFO(vlandev)->vlan_id);
 
+			dev_put(vlandev);
 			unregister_netdevice(vlandev);
 
 			/* Group was destroyed? */

net/8021q/vlan_dev.c

@@ -738,7 +738,7 @@ static void vlan_flush_mc_list(struct net_device *dev)
 
 	while (dmi) {
 		dev_mc_delete(dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
-		printk(KERN_INFO "%s: del %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address from vlan interface\n",
+		printk(KERN_DEBUG "%s: del %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address from vlan interface\n",
 		       dev->name,
 		       dmi->dmi_addr[0],
 		       dmi->dmi_addr[1],
@@ -820,7 +820,7 @@ void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
 		for (dmi = vlan_dev->mc_list; dmi != NULL; dmi = dmi->next) {
 			if (vlan_should_add_mc(dmi, VLAN_DEV_INFO(vlan_dev)->old_mc_list)) {
 				dev_mc_add(real_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
-				printk(KERN_INFO "%s: add %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address to master interface\n",
+				printk(KERN_DEBUG "%s: add %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address to master interface\n",
 				       vlan_dev->name,
 				       dmi->dmi_addr[0],
 				       dmi->dmi_addr[1],
@@ -838,7 +838,7 @@ void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
 				 * delete it from the real list on the underlying device.
 				 */
 				dev_mc_delete(real_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
-				printk(KERN_INFO "%s: del %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address from master interface\n",
+				printk(KERN_DEBUG "%s: del %.2x:%.2x:%.2x:%.2x:%.2x:%.2x mcast address from master interface\n",
 				       vlan_dev->name,
 				       dmi->dmi_addr[0],
 				       dmi->dmi_addr[1],